Concessão da patente
#16.1
03/31/1987
RPI 858
Application data
Number
PI8202708Type
Filing
Publication
The letters patent expired on 07/01/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 03/31/1987. We update with every new RPI gazette, published weekly.
Applicants
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
Inventors
E. B. (pessoa física)
BR
E. R. (pessoa física)
BR
G. S. (pessoa física)
BR
M. M. (pessoa física)
BR
V. S. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
03/31/1987
RPI 858
#13.1
11/04/1986
RPI 837
#9.1
07/08/1986
RPI 820
#15.11
04/29/1986
RPI 810
#6.1
10/15/1985
RPI 782
05/29/1984
RPI 710
#4.1
03/07/1984
RPI 698
#3.1
12/20/1983
RPI 687
#2.1
06/22/1982
RPI 609
#21.1
Patente extinta em 11/05/97
07/01/2008
RPI 1956
From the same holder
Same category
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